To use this jacket, simply put it on like any other coat. It's great for outdoor activities in winter. When choosing a size, remember Asian sizes are smaller, so pick a larger one if you're between sizes. Before buying, check the size chart. If you're not sure, reach out to customer service. When it comes to color, don't be surprised if there's a slight difference from the pictures on your computer. For maintenance, follow the care instructions on the label. Usually, you can machine - wash it on a gentle cycle with similar colors. Hang it to dry to keep its shape. This jacket will keep you warm and stylish all winter long.